Hai , i am want to filter data from array

showing error " Fatal error: MyReport cannot use koolreport\processes\Filter "

please help me ?

<?php
//MyReport.php
require APPPATH."/libraries/koolreport/autoload.php";

class MyReport extends \koolreport\KoolReport
{
    use \koolreport\clients\Bootstrap; 
    use \koolreport\processes\Filter;
    public function settings()
    {
        return array(
            "dataSources"=>array(
                "myarray_source"=>array(
                    "class"=>'\koolreport\datasources\ArrayDataSource',
                    "dataFormat"=>"associate",
                    "data"=>$this->params["myarray"]
                ),
            )
        );
    }

    function setup()
    {
        $this->src("myarray_source")
        ->pipe(
            $this->dataStore("data")
        )
        ->pipe(new Filter(array(
            array("country","=","France")
        )));
    }
}

error gone, but data not filtered

nice, thank full its very help